Senior Database Administrator – Query Optimization Upgrade

TechFlow Inc

Freelance · Remote · Flexible hours

About the role

TechFlow Inc is launching a security hardening initiative for its cloud‑hosted applications. We need a Database Administrator to tighten database configurations, enforce encryption, and audit access controls across our multi‑cloud environment.

Key responsibilities

• Review and remediate security settings for PostgreSQL, MongoDB, and MySQL instances.
• Implement role‑based access, encryption at rest and in transit, and audit logging.
• Conduct vulnerability scans and apply patches promptly.
• Collaborate with DevOps to integrate security controls into CI/CD pipelines.
• Document hardened configurations and provide knowledge transfer.

Must-have skills

• 5+ years managing PostgreSQL, MongoDB, and MySQL in cloud environments.
• Deep understanding of database security best practices and compliance standards.
• Experience with AWS RDS, Azure Database services, or GCP Cloud SQL.
• Proficiency in scripting (Python, Bash) for automation.

Nice to have

• Certifications such as CISSP, CISA, or cloud security credentials.
• Familiarity with infrastructure‑as‑code tools (Terraform, CloudFormation).